Apparatus for treating soap-lyes



(No Model.) Y n A' A. DOMEIER 8v 0. G. 'HAGBMANN APPARATUS FOR TEATPNG SOAP LYE. 110.413,61?.A Patented 001. 22, 1889.

A L,ULTITED STATES PATENT OFFICE.

ALBERT DOMEIER AND OTTO CHRISTIAN I-IAGEMANN, OE LONDON, ENGLAND,

A AssIeNoRsTo JAMES s. KIRK, aI co., or cI-IIOAeo,-ILLINoIs.

APPARATUS IFo Rv TREATI N G SOAP- I YES.

SPECIFICATION formingpart of Letters Patent No. 413,617, dated October 22, 1889.

Application led December 21, 1888. Serial No. 294,308. (No model.)

To all whom it may concern:

Be 1t known that we, ALBERT DOMEIER, merchant, and OTTO CHRISTIAN HAGEMANN, mechanical engineer, both of London, England,-

have invented a new and useful apparatus for washmg or purifying the salt recovered from i spent soap-lye during the manufacture of y crude glycerine therefrom, of Vwhich the fol#V lowing is a specification.

` or glycerine from said salt, and at the same The salt which is thrown out of,` solution during the concentration of soap-lye for the manufacture of crude glycerine and in the distillation of such crude glycerine is contaminated with the lye or crude glycerine as an impurity; and our object is to recover such lye time free the salt from these impurities and render it clean and merchantable and fit for use again in the manufacture of soap. To

this end -we subject the salt to a treatment-orprocess which forms the subject-matter of a companion application for Letters Patent of the United States, Serial No. 294,307, filed of even date herewith.

In carrying out our process we make use of the improved apparatus shown in the accompanying drawings, which process we will describe in connection with the description of said apparatus; butsaid process forms no part of the subject-matter of this application.

The accompanying drawing is a viewin side elevation showing the general arrangement of parts, the salt-receiving cylinder being shown in vertical section.

A B C D E F are small tanks or tubs placed at a higher elevation than cylinder G, within which latter is journaled a vertical rotatable shaft H, having blades ormixers I I. The shaft H is revolved by means of gearing J, driven by suitable belts passed over pulleys J', in order to mix the contents of cylinder G.

K is afalse bottom of the nature of a sieve, composed of a perforated Inetal plate covered with wire-gauze or canvas, or both. A second perforated plate may be placed on top of the l gauze or cloth for protection of same from abrasion. Below the level of the sieve is placed a closed cylinder or vessel L, which communicates with cylinder G by'a pipe N, fitted with a valve n, anda branch pipe O therefrom, also fitted with a valve o, leads to an air-pump P, capable, by reason of its being both a suction and compression pump, of

vproducing air pressure or vacuum in cylinder L. The exhaustion of cylinderL and the compression of air Within the same take place through thev pipes O and L when the valves o and n are closed. Another branch pipe Q communicates also with cylinder L, A pipe n R, fitted with valve S, leads from the bottom The operation of this apparatus is as follows: i

The mixture of salt and lye or glycerine is placed in the cylinder G and the mixerv revolved to mix the mass thoroughly, and this maybe assisted by forcing in air by means of pump P through the pipe O. The cylinderL is then exhausted by the air-pump P, and at the same time valve n is o'pened (the other valves being closed) and the glycerine or lye adhering to the salt for the most part drawn through pipe N into cylinder L. Valve n is then closed and valveX opened and the glycerine or lye forced to store-tank through pipe W by means of air-pressure from pump P. The vessels A F are charged with a saturated aqueous solution of common salt, which solution, unlike pure water, is incapable of dis-` solving any more salt, but which will dissolve and remove glycerine therefrom. The lower valve of tank A is opened and the solution allowed to iow into the salt in cylinder G. The

whole is then mixed together by mixers I. Valve n is then opened and the liquor drawn into ,cylinder L by means of the air-pump P. Valve n is then closed and valve X opened and the liquor forced by means of the pump P th rough pipe W to the store-tank. The liquor from B is now allowed to fiow down to the salt in cylinder G and mixed with the salt therein. The valve n is again opened and the liquor drawn in'to cylinder L by the pump. The valve S is then opened and the liquor in L forced up into cylinder or vessel A. The liquor from C is now allowed to flow down IOO into the salt in cylinder G, the shaft again revolved to mix the mass, the valve n again opened, and the liquor drawn into cylinder L by the pump. The valve S is then opened and the liquor forced up into cylinder B. The same operation is repeated with the liquor in each of the cylinders D,E,and F,inallyleav ing cylinder F empty. This is recharged with more of the solution of salt, which is allowed to iioW down into the salt in cylinder G, mixed therewith, drawn iut-o cylinder L, and forced therefrom into cylinder F. Air is now drawn through the salt in cylinder G until it is dry, or nearly so, when door V is opened and the purified salt removed.

We claim-- l. In an apparatus for Washing and purify-I ing the salt recovered from spent soap-lye, the combination of a cylinder to contain said salt, a series of tanks to contain an aqueous solution of salt and communicating with said cylinder, an exhaust chamber or vessel connected to said cylinder, and a pump connected with said exhaust-chamber, substantially as and for the purpose described.

2. In an apparatus for Washing and purifying the salt recovered from spent soap-lye, the combination of a cylinder to contain the salt under treatment, having mechanical mixers mounted therein, a series of tanks communicating by suitable pipes and valves with said cylinder, an exhaust-chamber connected with the salt-cylinder, and a pump connected with said chamber whereby liquids contained in the cylinder maybe drawn off and the salt dried, substantially as described.

3. In an apparatus for Washing and purifying the salt recovered from spent soap-lye, the combination of a cylinder to contain the salt undergoing treatment, said cylinder having a perforate bottom, a series of tanks communicatin g with the cylinder, an exhaustchamber connected With the cylinder, and an airpump connected With said exhaust-chamber, substantially as described, and for the purpose set forth.

4. In an apparatus for Washing and purifying salt recovered from spent soap-lye, the combination of a cylinder to contain said salt, a series of tanks to contain an aqueous solution of salt and communicating with said cylinder, an exhaust chamber or vessel connected to said cylinder, a pump connected with said exhaust-chamber, and a pipe to conduct the liquor from said exhaust-chamber to a storage-tank or other suitable receptacle, substantially as described.

ALBERT DOMEIER. OTTO CHRISTIAN HAGEHANN.

Witnesses:

MARTIN B. WALLER,

U. S. Vz'ce- C'onsul- General, London. A. G. MossARD.

It is hereby oertied that Letters Patent No. 413,617, granted October 22, 1889, upon cg, the applieation of'Albert Domeier and Otto Christian Hagemann, of London, England,

for an improvement in Apparatus for Treating Soap-Lyes,7 Were erroneously issued I to James S. Kirk & Co. as sole owners of the invention; that said Letters Patent i E E should have been issued to said Albert Domeier and Jeunes S. Kirk (It Oo., jointly, eaeh being owner of one-half interest, as shown by the record of assignments in this Office D- and that saidV Letters Patent should be read With this correction therein that the same may conform to the record of the ease in the Patent Ofee; i

i 1 Signed, oountersigned, and sealed this 5th day of November, A. D. 18.89.

C [SEAL] OYRUS BUSSEY,

Assistant Secretary of the Interior.

Countersigned:

' C. E. MITCHELL,

Commissioner of Patents. 

